Clicking-machine.



A. R. SCHOENKY.

CLICKING MACHINE.

APPLICATION FILED IEB.26, 1912.

Patented July 29', 1913.

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A. R. SCHOENKY.

CLICKING MACHINE.

APPLICATION FILED r23. 26, 1912.

1 ,O68,455, Patented July 29, 1913.

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UNITED STATES PATENT OFFICE.

AUGUST 3. SCHOENKY, OFOMERVILLE, MASSACHUSETTS, ASSIGNOR TO THE REECE SHOE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF CLICKING-MACHINE.

To a whom, it may concern:

Be it known that I. AUGUST R. SCHOENKY, a citizen of the United States, residing at r omcrvillc. in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Clicking-Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to clicking machines, that is to say machines operating on the general principle hereinbelow described, for cutting out of leather or other stock the necessary shapes to form the upper or other parts of shoes or the like.

In a clicking machine such as herein described, there is a table, above which is a ram or hammer arm having means to cause it to descend toward the table at will. Any desired cutting dies will be properly positioned upon the stock by. the operator. and the stock and die. laid on the table, so that the ram may be caused to descend to force the die through the stock. In a machine of this type, the ram or hammer arm is a large heavy casting, and its actual movement will be comparatively small. so that when elevated it will not clear the table by a large space. To enable proper access to the table, the ram is made capable of swinging usually either to right or left, so that it normally may stand to one side while the stock and die are being adjusted, the operator then swinging the ram to a position over the die preparatory to causing the rams descent for effecting the clicking or cutting.

In operating a machine of this type. there is a danger that the descent of the ram may be effected before the swinging movcment thereof has been completed. which would produce a shearing movement that would be injurious to the uccuruc of the work and injurious also to the dies and the machine.

It is one object of the present invention to overcome the danger of this shearing action.

Other objects will appear in the hereinafter following description, or will be apparent to those skilled in the art.

I will first describe one form of machine embodying my improvements, and will then set forth the novel features in the claims.

Specification of Letters Patent.

Patented July 29, 1913.

Application filed February 26, 1912. Serial No. 680,044.

In the accompanying drawings, forming a part hereof. Figure l is a right-hand ele vation of a clicking machine embodying my present invention. Fig. 2 is a front elevation thereof. Fig. 3 is a right-hand view of some of the upper parts of the machine, they being broken-away for the purpose of limiting the space requiredby the figure. Fig. 4 is similar to Fig. 3, showing the parts in a different position. "Fig. 5 is a top view partly in section of the parts shown in Fig. 3. Fig. 6 is a top view partly in section of the parts as shown in Fig. 4;. Fig. 7 shows an enlarged detail in right-hand view.

Similar letters of reference designate corresponding parts in the several figures of the drawings. i.

Generally speaking the herein described machine includes a table member, on which the work is laid. together with a hammer member having a movement of reciprocation normal to the top of the table for delivering successive blows. one of the two, the hammer member rather than the table, having movement parallel to the table top surface, for r latively bringing the two .into suitable registry. a device shiftable to' and from operative position and adapted when at operative position to prevent such relative parallel registering movement while permitting the normal blow-delivering movement, a power member or driving shaft, :1 controller or handle. connections from the controller for causing the power shaft to actuate the hammer to deliver blows, and other connections from the controller for shifting the afore said device from inoperative to operative position. whereby the blows are necessarily struck with a purely normal movement rather than a shearing movement.

The details of'thc table A need not be set forth. Said table is supported upon the frame and haw parts A. and the latter at the rear have an upwardly extending head K, said head extendingforwardly above to where it is provided with the enlargement A bored or machined out to receive and guide in its up and down movements a vibrating ram B, or rather the cylindrical portion B thereof, said portion B having also a guide A below.

The ram B comprises in addition to the cylindrical portionB, a forwardly extend- .ing portion B which may for convenience be termed a hammer arm, since it is in the form of an arm and is the actual part that pounds or hammers the die upon the table A.

As before indicated the ram B is capable not only of up and down reciprocation, but also of a rotation in its bearings 0r guides so that the arm B may be swung preferably either to right 0 left of its normal position shown in the fi ires. A handle b is shown on the forward part of arm 13 to facilitate its swinging: As will be seen the under surface 0 of the hammer arm is a flat surface parallel with the table A, that is to say both of them are horizontal, and of considerable area so that no accuracy is necessary in positioning the arm so long as any part of its surface entirely covers the dies to be operated. For causing the upward and downward movements of the ram the following mechanism may be employed. It is desirable that the actuation only occur at the operators will, as for example .during the time that he is pressing a hand lever or the equivalent. As a source of power a pulley C may be employed, it being loose upon horizontal shaft 0, and said pulley being driven by a belt or otherwise. .In front "ofthe pulley is a casting 0 having projecting forwardly from it a lug which is adapted to engage at times'another lug for the purpose of causing the rotation of shaft 0. The second lug (not seen) is yieldingly radially supported in the rotating cylinder r? cu red upon shaft 0, and so arranged that when projecting outwardly from said cylinder, the lug c is in a position to be engaged by lug cso that the shaft 0 will rotate with pulley C.

The shaft 0 extends forwardly to where near its forward end it is provided with a bearing c ,and beyond the bearing a crank or pin 0 which engages in a block b connected by yoke b to the lower end of the cylindrical portion B of the ram B. The

throw of the crank is comparatively short so that the rotation of shaft 0 causes slight upward and downward movements of the ram.

For effecting the starting and stopping of th rams movements. a hand lever D is employed, it being preferably centrally arnanged over the table A, and therefore of ;convenient access, and it being so shaped as to extend around the rum to the point D where the lever D is pivoted and from which as a center it takes its movements. A rearward extension DF 'of the lever I) is connected'to a spring d which'pulls downwardly, and thereby I tends normally to ntt.:' the handle D in.upward position. A link 03 is pivotallyconnected to the rear end of extension D and also to the forward portion (1 of a bell crank lever, whose downwardly extending portion (1 is yoked at the lower end d so as to straddle .the cylinder 0* previously mentioned. In

to the left, thus uncovering'thc yielding lug and permitting it to project to where the cooperating lug 0 will strike it to cause the rotation of the shaft 0.

The handle or lever D is seen to have a peculiar shape forward of its pivot l). The ring portions e, e of the handle 1.) sur round the ram and are relatively movable that theforw ard part of the handle 1) can be swung to right or left as the operator may find convenient without interfering with its operation.

In order to stop the swinging of the h mmer arm B in time to prevent objectionable shearing thereby, I have provided de ices for locking the ram against rotation or swinging. Thus a part which may be termed a swing-stop F is fitted upon an extension (1 of the enlargement A of the frame, this swing-stop being capable of shifting from open to closed posit on. Fig. 1 shows the swing-stop in open position, the :am not beinglocked and the hammer arm being free to be swung to right or left. The swing-stop is shown in enlarged view in Fig. 7 where it is in closed position. The swing-stop will be seen to consist of a toe f on one side of a pivot and a heel f on the other side, the latter being pressed out \vardly by a spring f so as to throw the toe f inwardly toward the ram B.

The ram at or adjacent to the toe f is serrated, by which I mean provided with projections or teeth, or grooved, recessed or notched in any suitable way to cooperate with the toe fr Thus longitudinal serrations are shown at G, these extending over an ample portion of the rams surface both vertically and circumferentially, so that wherever the swing-stop F may contact the ram it will meet with serrations and engage in the recesses therebetween. As seen in Figs. 5 and 6,.the serrations may consist simply of pointed teeth extending longitudinally or, vertically, while the toe f is of pointed shape to snugly engage in the serrations. When the toe is engaged in the serrations the ram is locked against rota-.

tion or' swinging, but since the serrations are longitudinal 1n direction, the ram is still capableof its up and down reciprocations.

to permit the free swinging of; the arm B; To-thisen dthe handle Dis formed as.

clearly' indicated in Fig.- 1, .yvith" an upwvard sweep and at its highest point it is 1 provided with anarc-shaped extension or member H concentric with the axisof the .ram and with the axis of the rings e,'-e,.'

This -member H is adapted to cotiperate with-the heel j of the swing-stop to press it inward against the spring'f and thereby move'the'toe f, outward,' and the parts are shown in this position in Figs. 1, 3. and 5.

It is therefore seen that the condition of having the handle D in upward position (arises the swing-stop to disengagefrom the 7am. V v N Assume now that the opera-tor 1s swinging the arm B forwardlyfor performing a cutting operation, and is about to prematurely cause the descent of'the ram bv pull-i ing the handle D downwardly. The instant the handle is pulled member H thereon retreats from the heel of the swing-stop and permits the latter to shift into position where its toe engages 'in the serrations: oi the ram, as seen in Figs. 4, 6 and '1. This immediately causes a stoppage of the swinging movement and :locks the ram against swinging or rotation. Thereupon the ram and arm may safely be'fcaused to descend upon-the dies. Inthiswvay the ob ileacet before stated of avoiding shearing and accomplished.

"dangers thereof, 'is Since the .present improvement may be modified in various ways, and embodied in different forms of machines, I do not wish' to be-limited to the precise details hereinabove described, except so far as. the same arcset forth in the appended claims.

What I claim and desire to secure by Letters latent is: t

1. A clicking machine including in com bination, a table, an ascending and descending ram, a laterally swinging hammer carried by the ram and; adapted to strike blows on its descent, a shlfiable stop'device mount-- ed on a relativelystationary part of the machine, a series of vertical serrations carried by sald'ram and partaking of all its movements, and a single controller having connections both for shifting said stop deyice into en agcment with said serrations to sto sa i "hammers swinging'and for causin the descent of said ram and, ham- "mer re atively to said table and said stop device.

, 1 2. -A .clicking machine comprising in combination, a reciprocating and swinging ram whaving longitudinal serrations on a cylinv drical portion thereof, a pivoted swing-stop having a toe -adapted to engage. said serrations, a spring tending to cause such en gagement, a inmber as H for normally holding said swing-stop outofj engagement,

and a handle both for withdrawing said member to permit the swing-stopto lock the -ram, and for'fcausingthe rain to be reciprocated.-, 1

3. A'T-cIiking-QmaChine,including in combination," a table. member, a hammer mem- "berfhavin'ga movement'normal to the table .member for delivering successiveblows, one

of said members havin a movement parallel Y to the table surface for bringing said members into suitable registry,'a device shift'able -to'and from o erative position adapted-to, prevent the a'oresaid parallel movement while permitting the aforesaid normal movement, a power member, a'controlleror hanf dle, connections from said" controller for causing the .power member to actuate the hammer member, and other connections from said controller for shifting said vdevice to'operati've position, whereby the blow i is struck with a purelynormal movement.

'4. Alclicking machine including in combination, a. table member, a hammer memher having a movement normal to the table. member for delivering successive blows, one .o-fsaid membershaving a movement parallel to the table surface for bringing said me-mberg into suitable registry, a device shiftable 'to and from o erative position adapted toprevent the a oresaid parallel movement while' permittingthe aforesaid normal movement, a power member, a controller or handle; connections from said controller for causing the power member to actuate the hammer member, and other connections from said controller for shifting said device to operative position, whereby the blowi isa struck with a purely normal'movement, said device being relatively stationarywith respect to the hammer members movements, and carried elsewhere than on said hammer memben. i

5. A clicking machine including in combination, a table member, a hammer memher having a movement normal to the table member for delivering successive blows, one of said members having a movement parallel to the table surface for bringing said mem bers into suitable registry, a device shiftable' to and from operative position adapted to prevent the aforesaid parallel movement while permitting the aforesaid normal. movement, a power member, a controller or handle, connections from said controller for causing the power member to-actuate the hammer member, and other connections from said controller for shifting said device to operative position, whereby the blow s struck with apu'rely ngr xhalfimvlmrig'said' 'In tegtimony whereof a'ffii fmy ignaF device being relatively stationary "wi'th r 'e-- ture in presenqq of'two witnesses,

5 member and coiipe'mt-ing 'j -vi'thwhe longitu= Witnesses:

dinal serrations 0n' thememb'erwhich" has' THOMAS J. GARTY 

